Kinda makes you wonder how did they earth Edinburgh Castle..

Furse could well have been involved - they did a lot of work on protecting our radio transmitting sites for lightning protection. We carried out a lot of our own work using brazing sets and Cadweld, which could get a little interesting at times... and of course the odd setting fire to the Machair incidents kept us amused..
Earls Hill was a bugger of a site near Stirling with a 600' mast and after a big strike you could smell the ozone of the corona for hours in the building.